1,720,981 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Mathematics Learning and Education from Birth to Eight Years
Get PDFThis chapter presents a critical review and celebration of the most significant Australasian early childhood mathematics education research that has been published over the period 2016-2019. We utilise the internationally-accepted definition of ‘early childhood’ as the age range birth to eight years, encompassing prior to school settings, school settings, as well as home and community contexts. Eminent scholars in the field have undertaken the research presented in this chapter in conjunction with a range of stakeholders in early childhood mathematics education, including teachers, families and children. This chapter is structured according to six key themes which emerged from the preliminary analysis and categorisation of the current research across the Australasian region; namely: Mathematics content; Curriculum, policy and assessment; Aspects of teaching and learning; Home and prior to school contexts; Australian and New Zealand Indigenous education; and Emerging areas of research. Indeed, this review highlights several very promising new areas of research, for example: mathematics education for children aged birth to two years; and innovative research methodologies such as ‘camera glasses’ and ‘trolley cams’ utilised in everyday context. The new areas discussed in this chapter highlight the growing interest in, and opportunities for, research in the early years space. However, with the emergence of new areas of research there has been a decline in other areas such as pattern and algebra, geometry, and length measurement. From the synthesis of the research literature the following findings are evident. First, young children are often capable of mathematical thinking from a very early age, which suggests a mismatch between the intended curriculum and children’s capabilities when they start school. Second, the current education policies within Australia and New Zealand have yet to bridge the mathematical transition from early childhood settings to school. Third, the contrast between a holistic appreciation of the mathematics surrounding children in prior to school settings is in stark contrast to school settings where mathematics is formalised and segmented and less richly experiential. The chapter concludes with a discussion of recommendations for future research in this field
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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